f2fs: expand f2fs_invalidate_compress_page() to f2fs_invalidate_compress_pages_range()

New function f2fs_invalidate_compress_pages_range() adds the @len
parameter. So it can process some consecutive blocks at a time.

Signed-off-by: Yi Sun <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>

Author: Yi Sun

fs/f2fs/compress.c

@@ -1909,11 +1909,12 @@ struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi)
 	return sbi->compress_inode->i_mapping;
 }
 
-void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr)
+void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
+				block_t blkaddr, unsigned int len)
 {
 	if (!sbi->compress_inode)
 		return;
-	invalidate_mapping_pages(COMPRESS_MAPPING(sbi), blkaddr, blkaddr);
+	invalidate_mapping_pages(COMPRESS_MAPPING(sbi), blkaddr, blkaddr + len - 1);
 }
 
 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,

fs/f2fs/f2fs.h

@@ -4391,7 +4391,8 @@ void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
 int __init f2fs_init_compress_cache(void);
 void f2fs_destroy_compress_cache(void);
 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
-void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
+void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
+					block_t blkaddr, unsigned int len);
 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
 						nid_t ino, block_t blkaddr);
 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
@@ -4446,8 +4447,8 @@ static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return
 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
 static inline int __init f2fs_init_compress_cache(void) { return 0; }
 static inline void f2fs_destroy_compress_cache(void) { }
-static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
-				block_t blkaddr) { }
+static inline void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
+				block_t blkaddr, unsigned int len) { }
 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
 				struct page *page, nid_t ino, block_t blkaddr) { }
 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
@@ -4766,7 +4767,7 @@ static inline void f2fs_invalidate_internal_cache(struct f2fs_sb_info *sbi,
 								block_t blkaddr)
 {
 	f2fs_truncate_meta_inode_pages(sbi, blkaddr, 1);
-	f2fs_invalidate_compress_page(sbi, blkaddr);
+	f2fs_invalidate_compress_pages_range(sbi, blkaddr, 1);
 }
 
 #define EFSBADCRC	EBADMSG		/* Bad CRC detected */